Europe's population during the Middle Ages consisted, in one way or another, largely of Slavs. They were the largest single ethnic group in Europe. At first, they were located primarily in eastern and southeastern Europe. The South Slavs comprised what are now the Serbs and Croats; the West Slavs were the ancestors of the Poles and Czechs; and East Slavs - who became Eastern Orthodox - were the forerunners of the Russians and Ukranians.
This schism would help define the differences between eastern and Western Slavs. Eastern Slavs were controlled by the violent Byzantine Empire, while Western Slavs were influenced by more progressive elements. Some historians believe that the iron-tight control imposed on Eastern Slavic countries in the Middle Ages led inevitably to modern socialism.
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| Early polish Swiatovit, a four sided statues depicting a Slavic supreme deity |
This schism would help define the differences between eastern and Western Slavs. Eastern Slavs were controlled by the violent Byzantine Empire, while Western Slavs were influenced by more progressive elements. Some historians believe that the iron-tight control imposed on Eastern Slavic countries in the Middle Ages led inevitably to modern socialism.








